Electrostatics I

The law of conservation of charge states that...

• all atoms have more protons than electrons
• only protons can be rubbed off of an atom
• charge cannot be created or destroyed
• charge cannot be transferred 

The electrostatic force between two charges located 2 meters apart is 0.10 N.  What will the force be between these charges when they are located 1 meter apart?

• 0.40 N
• 0.20 N
• 0.10 N
• 0.05 N

Tags

NGSS.HS-PS2-4

How is the electric force between two charges affected when both of the charges are doubled?

• four times as much
• two times as much
• half as much
• one quarter as much

Tags

NGSS.MS-PS2-3

The elementary charge in nature is equal to ..........

• 1.6x10^-16C
• 1.6x10^-19C
• 1.9x10^-16C
• 1.9x10^-19C

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

A(n) .......... is a device used to check whether an object is charged or not.

• Chargescope

• Electroscope

• Electronscope

• Charger

When an object gains electrons it becomes __________

• Neutral

• Positively charged

• Negatively charged

Tags

NGSS.MS-PS2-3

When -2nC comes in contact with +6nC the charge of each sphere after contact is _________

• 4 nC

• 8 nC

• -2 nC

• +2 nC

The gold leaves of an electroscope deflect when a positively charged ruler is brought to the metal cap because __________

• one leaf is positive and the other is neutral

• both leaves are positively charged

• one leaf is positive and the other is negative

• one leaf is negative and the other is neutral

What is the name of the particle that is being transferred when objects exchange charge?

• Proton

• Neutron

• Electron

• Positron

If two balloons have the same charge, what will happen if you place them close to each other?

• Nothing
• They will be attracted
• They will pop
• They will push each other away.

Tags

NGSS.HS-PS2-4